What’s in a name? Perhaps $100 million if it’s on a prominent Lincoln Center building.

Avery Fisher Hall, home to the New York Philharmonic, will someday be renamed for a philanthropist willing to pay for a big-bucks renovation — but first Lincoln Center has to shell out over $15 million to buy back the concert hall’s current name.

After threatening to sue, Avery Fisher’s heirsagreed to let the performing-arts organization drop his name in exchange for $4.5 million more than the original $10.5 million the Fisher Electronics founder donated back in 1973.

Now Lincoln Center can tempt another well-to-do donor willing to sink serious money into a planned $500 million overhaul in exchange for their name being emblazoned on the building.

Concert-hall renovations are set to begin in 2019.

“This transformative act of philanthropy enables us to pursue a new naming opportunity that will help fund construction of a state-of-the-art, new home for the New York Philharmonic and other world-class performers,” said Jed Bernstein, Lincoln Center president, in a statement Thursday.

Benefactors who get buildings named for them typically give wildly generous gifts.

In 2008, the New York State Theater was renamed after billionaire David H. Koch who donated $100 million toward its renovation.